Description
This product is a black tourmaline gemstone that is inky black when lightly diluted and can be watered down to a soft, heavily diluted fog grey. It has a wonderful granulation that is displayed to full effect when used on rough watercolour paper. The gemstone is also lightfast and non-staining.
Black Tourmaline is an inky night black when used lightly diluted that can be watered down to a soft, heavily diluted fog grey. This product has a wonderful granulation that is displayed to full effect when used on rough watercolour paper.
ASTM
Lightfastness: ExcellentStaining: Non-StainingGranulating: YesTransparency: Transparent